Table 4 Correlation between C-Shaped Canal and taurodontism, including subtypes and distribution.

From: Multinational cross-sectional study and meta-analysis on radicular grooves, C-shaped canals, and taurodontism in mandibular first premolars across 20 countries

 

C Canal

None

Groove

None

Present

Present

Taurodontism

Present

263.0 (21.8%)

657.0 (6.1%)

451.0 (18.3%)

469.0 (4.9%)

None

946.0 (78.2%)

10134.0 (93.9%)

2008.0 (81.7%)

9072.0 (95.1%)

Cramer’s V

0.177

 

0.204

 

Taurodontism Types

Hypotaurodontism

136.0 (51.7%)

381.0 (58.0%)

203.0 (45.0%)

314.0 (67.0%)

Hypertaurodontism

36.0 (13.7%)

58.0 (8.8%)

69.0 (15.3%)

25.0 (5.3%)

Mesotaurodontism

91.0 (34.6%)

218.0 (33.2%)

179.0 (39.7%)

130.0 (27.7%)

Cramer’s V

0.079

 

0.237

 
  1. Cramer’s V Strength: Very strong (> 0.25), Strong (> 0.15), Moderate (> 0.10), Weak (> 0.05), None (≤ 0.05).